#130 Unable to import primary_product_category

[Topher L]

We have been using Magmi to import new products to our Magento install for a while now and have always set the column product_primary_category as Root Catalog -> Category -> Sub-Category

For some reason, recently the Product Primary Category no longer sets inside Magento and remains set on the default, "Please select primary category". We have tried changing the CSV column product_primary_category from Root Catalog -> Category -> Sub-Category to the actual ID of the category as well to no avail.

Has anyone experienced this? What was your fix? Any assistance would be greatly appreciated.